Quote:
Originally Posted by me and my metro
I would imagine that the B20 Diesel kills mileage and performance like the E10-15 does for the gasoline powered rigs.
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Mileage? Maybe. Performance? Not so noticeably affected. But anyway, ethanol doesn't decrease performance compared to gasoline, even though the mileage is affected.
Back to topic: nowadays that many newer downsized Diesel engines are more rev-happy than their predecessors, not to mention the increased presence of direct injection on light-duty vehicles in the last 20 years, would already be a matter of concern regarding a lower cetane rating. The slight decrease on the compression ratio, needed for some engines to comply with NOx regulations, is also relevant not just due to the NOx, since a more accurate combustion leads to a lower amount of particulate matter which in the end would require more frequent DPF regen cycles.